11221112087 has 2 divisors, whose sum is σ = 11221112088. Its totient is φ = 11221112086.

The previous prime is 11221112069. The next prime is 11221112197. The reversal of 11221112087 is 78021112211.

It is a happy number.

11221112087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11221112087 - 2¹⁰ = 11221111063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221112057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610556043 + 5610556044.

It is an arithmetic number, because the mean of its divisors is an integer number (5610556044).

Almost surely, 2^11221112087 is an apocalyptic number.

11221112087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221112087 is an equidigital number, since it uses as much as digits as its factorization.

11221112087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 11221112087 its reverse (78021112211), we get a palindrome (89242224298).

The spelling of 11221112087 in words is "eleven billion, two hundred twenty-one million, one hundred twelve thousand, eighty-seven".